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Khoshhal Mollasaraei Z, Behroozmand R. Impairment of the internal forward model and feedback mechanisms for vocal sensorimotor control in post-stroke aphasia: evidence from directional responses to altered auditory feedback. Exp Brain Res 2024; 242:225-239. [PMID: 37999725 PMCID: PMC10849397 DOI: 10.1007/s00221-023-06743-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 11/05/2023] [Indexed: 11/25/2023]
Abstract
The present study examined opposing and following vocal responses to altered auditory feedback (AAF) to determine how damage to left-hemisphere brain networks impairs the internal forward model and feedback mechanisms in post-stroke aphasia. Forty-nine subjects with aphasia and sixty age-matched controls performed speech vowel production tasks while their auditory feedback was altered using randomized ± 100 cents upward and downward pitch-shift stimuli. Data analysis revealed that when vocal responses were averaged across all trials (i.e., opposing and following), the overall magnitude of vocal compensation was significantly reduced in the aphasia group compared with controls. In addition, when vocal responses were analyzed separately for opposing and following trials, subjects in the aphasia group showed a significantly lower percentage of opposing and higher percentage of following vocal response trials compared with controls, particularly for the upward pitch-shift stimuli. However, there was no significant difference in the magnitude of opposing and following vocal responses between the two groups. These findings further support previous evidence on the impairment of vocal sensorimotor control in aphasia and provide new insights into the distinctive impact of left-hemisphere stroke on the internal forward model and feedback mechanisms. In this context, we propose that the lower percentage of opposing responses in aphasia may be accounted for by deficits in feedback-dependent mechanisms of audio-vocal integration and motor control. In addition, the higher percentage of following responses may reflect aberrantly increased reliance of the speech system on the internal forward model for generating sensory predictions during vocal error detection and motor control.
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Affiliation(s)
- Zeinab Khoshhal Mollasaraei
- NeuroSyntax Lab, Department of Communication Sciences and Disorders, Arnold School of Public Health, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA
| | - Roozbeh Behroozmand
- Speech Neuroscience Lab, Department of Speech, Language, and Hearing, Callier Center for Communication Disorders, School of Behavioral and Brain Sciences, The University of Texas at Dallas, 2811 N. Floyd Rd, Richardson, TX, 75080, USA.
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2
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Liu D, Chang Y, Dai G, Guo Z, Jones JA, Li T, Chen X, Chen M, Li J, Wu X, Liu P, Liu H. Right, but not left, posterior superior temporal gyrus is causally involved in vocal feedback control. Neuroimage 2023; 278:120282. [PMID: 37468021 DOI: 10.1016/j.neuroimage.2023.120282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/25/2023] [Accepted: 07/16/2023] [Indexed: 07/21/2023] Open
Abstract
The posterior superior temporal gyrus (pSTG) has been implicated in the integration of auditory feedback and motor system for controlling vocal production. However, the question as to whether and how the pSTG is causally involved in vocal feedback control is currently unclear. To this end, the present study selectively stimulated the left or right pSTG with continuous theta burst stimulation (c-TBS) in healthy participants, then used event-related potentials to investigate neurobehavioral changes in response to altered auditory feedback during vocal pitch regulation. The results showed that, compared to control (vertex) stimulation, c-TBS over the right pSTG led to smaller vocal compensations for pitch perturbations accompanied by smaller cortical N1 and larger P2 responses. Enhanced P2 responses received contributions from the right-lateralized temporal and parietal regions as well as the insula, and were significantly correlated with suppressed vocal compensations. Surprisingly, these effects were not found when comparing c-TBS over the left pSTG with control stimulation. Our findings provide evidence, for the first time, that supports a causal relationship between right, but not left, pSTG and auditory-motor integration for vocal pitch regulation. This lends support to a right-lateralized contribution of the pSTG in not only the bottom-up detection of vocal feedback errors but also the involvement of driving motor commands for error correction in a top-down manner.
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Affiliation(s)
- Dongxu Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yichen Chang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Guangyan Dai
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhiqiang Guo
- School of Computer, Zhuhai College of Science and Technology, Zhuhai, China
| | - Jeffery A Jones
- Department of Psychology and Laurier Centre for Cognitive Neuroscience, Wilfrid Laurier University, Waterloo, Ontario N2L 3C5, Canada
| | - Tingni Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Centre for Eye and Vision Research, 17W Science Park, Hong Kong SAR, China
| | - Xi Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mingyun Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jingting Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiuqin Wu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Peng Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Hanjun Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.
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3
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Chang Y, Peng D, Zhao Y, Chen X, Li J, Wu X, Liu P, Liu H. Transcranial direct current stimulation over left dorsolateral prefrontal cortex facilitates auditory-motor integration for vocal pitch regulation. Front Neurosci 2023; 17:1208581. [PMID: 37457017 PMCID: PMC10347532 DOI: 10.3389/fnins.2023.1208581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 06/16/2023] [Indexed: 07/18/2023] Open
Abstract
Background A growing body of literature has implicated the left dorsolateral prefrontal cortex (DLPFC) in the online monitoring of vocal production through auditory feedback. Specifically, disruption of or damage to the left DLPFC leads to exaggerated compensatory vocal responses to altered auditory feedback. It is conceivable that enhancing the cortical excitability of the left DLPFC may produce inhibitory influences on vocal feedback control by reducing vocal compensations. Methods We used anodal transcranial direct current stimulation (a-tDCS) to modulate cortical excitability of the left DLPFC and examined its effects on auditory-motor integration for vocal pitch regulation. Seventeen healthy young adults vocalized vowel sounds while hearing their voice pseudo-randomly pitch-shifted by ±50 or ±200 cents, either during (online) or after (offline) receiving active or sham a-tDCS over the left DLPFC. Results Active a-tDCS over the left DLPFC led to significantly smaller peak magnitudes and shorter peak times of vocal compensations for pitch perturbations than sham stimulation. In addition, this effect was consistent regardless of the timing of a-tDCS (online or offline stimulation) and the size and direction of the pitch perturbation. Conclusion These findings provide the first causal evidence that a-tDCS over the left DLPFC can facilitate auditory-motor integration for compensatory adjustment to errors in vocal output. Reduced and accelerated vocal compensations caused by a-tDCS over left DLPFC support the hypothesis of a top-down neural mechanism that exerts inhibitory control over vocal motor behavior through auditory feedback.
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Affiliation(s)
- Yichen Chang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Danhua Peng
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yan Zhao
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xi Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jingting Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiuqin Wu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Peng Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hanjun Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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Li T, Chang Y, Zhao S, Jones JA, Chen X, Gan C, Wu X, Dai G, Li J, Shen Y, Liu P, Liu H. The left inferior frontal gyrus is causally linked to vocal feedback control: evidence from high-definition transcranial alternating current stimulation. Cereb Cortex 2022; 33:5625-5635. [PMID: 36376991 DOI: 10.1093/cercor/bhac447] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 11/16/2022] Open
Abstract
Abstract
Current models of speech motor control propose a role for the left inferior frontal gyrus (IFG) in feedforward control of speech production. There is evidence, however, that has implicated the functional relevance of the left IFG for the neuromotor processing of vocal feedback errors. The present event-related potential (ERP) study examined whether the left IFG is causally linked to auditory feedback control of vocal production with high-definition transcranial alternating current stimulation (HD-tACS). After receiving active or sham HD-tACS over the left IFG at 6 or 70 Hz, 20 healthy adults vocalized the vowel sounds while hearing their voice unexpectedly pitch-shifted by ±200 cents. The results showed that 6 or 70 Hz HD-tACS over the left IFG led to larger magnitudes and longer latencies of vocal compensations for pitch perturbations paralleled by larger ERP P2 responses than sham HD-tACS. Moreover, there was a lack of frequency specificity that showed no significant differences between 6 and 70 Hz HD-tACS. These findings provide first causal evidence linking the left IFG to vocal pitch regulation, suggesting that the left IFG is an important part of the feedback control network that mediates vocal compensations for auditory feedback errors.
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Affiliation(s)
- Tingni Li
- The First Affiliated Hospital, Sun Yat-sen University Department of Rehabilitation Medicine, , Guangzhou 510080 , China
| | - Yichen Chang
- The First Affiliated Hospital, Sun Yat-sen University Department of Rehabilitation Medicine, , Guangzhou 510080 , China
| | - Shuzhi Zhao
- The First Affiliated Hospital, Sun Yat-sen University Department of Rehabilitation Medicine, , Guangzhou 510080 , China
| | - Jeffery A Jones
- Wilfrid Laurier University Psychology Department and Laurier Centre for Cognitive Neuroscience, , Waterloo, Ontario N2L 3C5 , Canada
| | - Xi Chen
- The First Affiliated Hospital, Sun Yat-sen University Department of Rehabilitation Medicine, , Guangzhou 510080 , China
| | - Chu Gan
- The First Affiliated Hospital, Sun Yat-sen University Department of Rehabilitation Medicine, , Guangzhou 510080 , China
| | - Xiuqin Wu
- The First Affiliated Hospital, Sun Yat-sen University Department of Rehabilitation Medicine, , Guangzhou 510080 , China
| | - Guangyan Dai
- The First Affiliated Hospital, Sun Yat-sen University Department of Rehabilitation Medicine, , Guangzhou 510080 , China
| | - Jingting Li
- The First Affiliated Hospital, Sun Yat-sen University Department of Rehabilitation Medicine, , Guangzhou 510080 , China
| | - Ying Shen
- The First Affiliated Hospital of Nanjing Medical University Rehabilitation Medicine Center, , Nanjing 210029 , China
| | - Peng Liu
- The First Affiliated Hospital, Sun Yat-sen University Department of Rehabilitation Medicine, , Guangzhou 510080 , China
| | - Hanjun Liu
- The First Affiliated Hospital, Sun Yat-sen University Department of Rehabilitation Medicine, , Guangzhou 510080 , China
- Zhongshan School of Medicine, Sun Yat-sen University Guangdong Provincial Key Laboratory of Brain Function and Disease, , Guangzhou 510080 , China
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Steurer H, Schalling E, Franzén E, Albrecht F. Characterization of Mild and Moderate Dysarthria in Parkinson's Disease: Behavioral Measures and Neural Correlates. Front Aging Neurosci 2022; 14:870998. [PMID: 35651530 PMCID: PMC9148995 DOI: 10.3389/fnagi.2022.870998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/04/2022] [Indexed: 12/05/2022] Open
Abstract
Purpose Alterations in speech and voice are among the most common symptoms in Parkinson's disease (PD), often resulting in motor speech disorders such as hypokinetic dysarthria. We investigated dysarthria, verbal fluency, executive functions, and global cognitive function in relation to structural and resting-state brain changes in people with PD. Methods Participants with mild-moderate PD (n = 83) were recruited within a randomized controlled trial and divided into groups with varying degrees of dysarthria: no dysarthria (noDPD), mild dysarthria (mildDPD), moderate dysarthria (modDPD), and also combined mildDPD and modDPD into one group (totDPD). Voice sound level and dysphonia, verbal fluency, motor symptoms, executive functions, disease severity, global cognition, and neuroimaging were compared between groups. Gray matter volume and intensity of spontaneous brain activity were analyzed. Additionally, regressions between behavioral and neuroimaging data were performed. Results The groups differed significantly in mean voice sound level, dysphonia, and motor symptom severity. Comparing different severity levels of dysarthria to noDPD, groups differed focally in resting-state activity, but not in brain structure. In totDPD, lower scores on semantic verbal fluency, a composite score of executive functions, and global cognition correlated with lower superior temporal gyrus volume. Conclusion This study shows that severity of dysarthria may be related to underlying structural and resting-state brain alterations in PD as well as behavioral changes. Further, the superior temporal gyrus may play an important role in executive functions, language, and global cognition in people with PD and dysarthria.
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Affiliation(s)
- Hanna Steurer
- Department of Clinical Science, Intervention and Technology (CLINTEC), Division of Speech and Language Pathology, Karolinska Institutet, Stockholm, Sweden
- R&D Unit, Stockholms Sjukhem, Stockholm, Sweden
| | - Ellika Schalling
- Department of Clinical Science, Intervention and Technology (CLINTEC), Division of Speech and Language Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Public Health and Caring Sciences, Speech-Language Pathology, Uppsala University, Uppsala, Sweden
| | - Erika Franzén
- R&D Unit, Stockholms Sjukhem, Stockholm, Sweden
- Department of Neurobiology, Care Sciences and Society, Division of Physiotherapy, Karolinska Institutet, Karolinska University Hospital, Women’s Health and Allied Health Professionals, Stockholm, Sweden
| | - Franziska Albrecht
- Department of Neurobiology, Care Sciences and Society, Division of Physiotherapy, Karolinska Institutet, Karolinska University Hospital, Women’s Health and Allied Health Professionals, Stockholm, Sweden
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6
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Ramage AE, Ray KL, Franz HM, Tate DF, Lewis JD, Robin DA. Cingulo-Opercular and Frontoparietal Network Control of Effort and Fatigue in Mild Traumatic Brain Injury. Front Hum Neurosci 2022; 15:788091. [PMID: 35221951 PMCID: PMC8866657 DOI: 10.3389/fnhum.2021.788091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/15/2021] [Indexed: 11/16/2022] Open
Abstract
Neural substrates of fatigue in traumatic brain injury (TBI) are not well understood despite the considerable burden of fatigue on return to productivity. Fatigue is associated with diminishing performance under conditions of high cognitive demand, sense of effort, or need for motivation, all of which are associated with cognitive control brain network integrity. We hypothesize that the pathophysiology of TBI results in damage to diffuse cognitive control networks, disrupting coordination of moment-to-moment monitoring, prediction, and regulation of behavior. We investigate the cingulo-opercular (CO) and frontoparietal (FP) networks, which are engaged to sustain attention for task and maintain performance. A total of 61 individuals with mild TBI and 42 orthopedic control subjects participated in functional MRI during performance of a constant effort task requiring altering the amount of effort (25, 50, or 75% of maximum effort) utilized to manually squeeze a pneumostatic bulb across six 30-s trials. Network-based statistics assessed within-network organization and fluctuation with task manipulations by group. Results demonstrate small group differences in network organization, but considerable group differences in the evolution of task-related modulation of connectivity. The mild TBI group demonstrated elevated CO connectivity throughout the task with little variation in effort level or time on task (TOT), while CO connectivity diminished over time in controls. Several interregional CO connections were predictive of fatigue in the TBI group. In contrast, FP connectivity fluctuated with task manipulations and predicted fatigue in the controls, but connectivity fluctuations were delayed in the mild traumatic brain injury (mTBI) group and did not relate to fatigue. Thus, the mTBI group's hyper-connectivity of the CO irrespective of task demands, along with hypo-connectivity and delayed peak connectivity of the FP, may allow for attainment of task goals, but also contributes to fatigue. Findings are discussed in relation to performance monitoring of prediction error that relies on internal cues from sensorimotor feedback during task performance. Delay or inability to detect and respond to prediction errors in TBI, particularly evident in bilateral insula-temporal CO connectivity, corresponds to day-to-day fatigue and fatigue during task performance.
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Affiliation(s)
- Amy E. Ramage
- Interdisciplinary Program in Behavioral Neuroscience, Department of Communication Sciences and Disorders and Biological Sciences, University of New Hampshire, Durham, NH, United States
| | - Kimberly L. Ray
- Department of Psychology, University of Texas, Austin, TX, United States
| | - Hannah M. Franz
- Interdisciplinary Program in Behavioral Neuroscience, Department of Communication Sciences and Disorders and Biological Sciences, University of New Hampshire, Durham, NH, United States
| | - David F. Tate
- Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, United States
| | - Jeffrey D. Lewis
- Mental Health Clinic, Wright Patterson Medical Center, Wright Patterson Air Force Base, Dayton, OH, United States
| | - Donald A. Robin
- Interdisciplinary Program in Behavioral Neuroscience, Department of Communication Sciences and Disorders and Biological Sciences, University of New Hampshire, Durham, NH, United States
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7
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Chen N, Zhao C, Wang M, Jones JA, Liu P, Chen X, Gong G, Liu H. Linking Cortical Morphology to Interindividual Variability in Auditory Feedback Control of Vocal Production. Cereb Cortex 2021; 31:2932-2943. [PMID: 33454738 DOI: 10.1093/cercor/bhaa401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/02/2020] [Accepted: 12/14/2020] [Indexed: 11/13/2022] Open
Abstract
Speakers regulate vocal motor behaviors in a compensatory manner when perceiving errors in auditory feedback. Little is known, however, about the source of interindividual variability that exists in the degree to which speakers compensate for perceived errors. The present study included 40 young adults to investigate whether individual differences in auditory integration for vocal pitch regulation, as indexed by vocal compensations for pitch perturbations in auditory feedback, can be predicted by cortical morphology as assessed by gray-matter volume, cortical thickness, and surface area in a whole-brain manner. The results showed that greater gray-matter volume in the left inferior parietal lobule and greater cortical thickness and surface area in the left superior/middle temporal gyrus, temporal pole, inferior/superior parietal lobule, and precuneus predicted larger vocal responses. Greater cortical thickness in the right inferior frontal gyrus and superior parietal lobule and surface area in the left precuneus and cuneus were significantly correlated with smaller magnitudes of vocal responses. These findings provide the first evidence that vocal compensations for feedback errors are predicted by the structural morphology of the frontal and tempo-parietal regions, and further our understanding of the neural basis that underlies interindividual variability in auditory-motor control of vocal production.
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Affiliation(s)
- Na Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.,Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Chenxi Zhao
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China.,School of Systems Science, Beijing Normal University, Beijing, 100875, China
| | - Meng Wang
- Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Jeffery A Jones
- Psychology Department, Laurier Centre for Cognitive Neuroscience, Wilfrid Laurier University, Waterloo, Ontario, Canada
| | - Peng Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Xi Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Gaolong Gong
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China.,Beijing Key Laboratory of Brain Imaging and Connectomics, Beijing Normal University, Beijing 100875, China.,Chinese Institute for Brain Research, Beijing 102206, China
| | - Hanjun Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.,Guangdong Provincial Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
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8
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Floegel M, Fuchs S, Kell CA. Differential contributions of the two cerebral hemispheres to temporal and spectral speech feedback control. Nat Commun 2020; 11:2839. [PMID: 32503986 PMCID: PMC7275068 DOI: 10.1038/s41467-020-16743-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 05/21/2020] [Indexed: 11/16/2022] Open
Abstract
Proper speech production requires auditory speech feedback control. Models of speech production associate this function with the right cerebral hemisphere while the left hemisphere is proposed to host speech motor programs. However, previous studies have investigated only spectral perturbations of the auditory speech feedback. Since auditory perception is known to be lateralized, with right-lateralized analysis of spectral features and left-lateralized processing of temporal features, it is unclear whether the observed right-lateralization of auditory speech feedback processing reflects a preference for speech feedback control or for spectral processing in general. Here we use a behavioral speech adaptation experiment with dichotically presented altered auditory feedback and an analogous fMRI experiment with binaurally presented altered feedback to confirm a right hemisphere preference for spectral feedback control and to reveal a left hemisphere preference for temporal feedback control during speaking. These results indicate that auditory feedback control involves both hemispheres with differential contributions along the spectro-temporal axis.
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Affiliation(s)
- Mareike Floegel
- Cognitive Neuroscience Group, Brain Imaging Center and Department of Neurology, Goethe University, Schleusenweg 2-16, 60528, Frankfurt, Germany
| | - Susanne Fuchs
- Leibniz-Centre General Linguistics (ZAS), Schuetzenstr. 18, 10117, Berlin, Germany
| | - Christian A Kell
- Cognitive Neuroscience Group, Brain Imaging Center and Department of Neurology, Goethe University, Schleusenweg 2-16, 60528, Frankfurt, Germany.
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9
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Behroozmand R, Johari K, Bridwell K, Hayden C, Fahey D, den Ouden DB. Modulation of vocal pitch control through high-definition transcranial direct current stimulation of the left ventral motor cortex. Exp Brain Res 2020; 238:1525-1535. [PMID: 32447409 DOI: 10.1007/s00221-020-05832-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 05/09/2020] [Indexed: 12/21/2022]
Abstract
Neural interactions between sensorimotor integration mechanisms play critical roles in voice motor control. We investigated how high-definition transcranial direct current stimulation (HD-tDCS) of the left ventral motor cortex modulates neural mechanisms of sensorimotor integration during voice motor control. HD-tDCS was performed during speech vowel production in an altered auditory feedback (AAF) paradigm in response to upward and downward pitch-shift stimuli. In one experiment, two groups received either anodal or cathodal 2 milliamp (mA) HD-tDCS to the left ventral motor cortex while a third group received sham (placebo) stimulation. In a second experiment, two groups received either 1 mA or 2 mA cathodal HD-tDCS to the left ventral motor cortex. Results of the first experiment indicated that the magnitude of vocal compensation was significantly reduced following anodal and cathodal HD-tDCS only in responses to downward pitch-shift AAF stimuli, with stronger effects associated with cathodal HD-tDCS. However, no such effect was observed following sham stimulation. Results of the second experiment indicate that there is not a differential effect of modulation from 1 mA versus 2 mA. Further, these results replicate the directional finding of the first experiment for vocal compensation in response to downward pitch-shift only. These findings suggest that neurostimulation of the left ventral motor cortex modulates sensorimotor mechanisms underlying voice motor control. We speculate that this effect is associated with the increased contribution of feedforward motor mechanisms, leading to reduced compensatory speech responses to AAF.
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Affiliation(s)
- Roozbeh Behroozmand
- Speech Neuroscience Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA
| | - Karim Johari
- Speech Neuroscience Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA.,Department of Psychology, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA
| | - Keiko Bridwell
- Neurolinguistics Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA
| | - Caroline Hayden
- Speech Neuroscience Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA
| | - Danielle Fahey
- Neurolinguistics Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA
| | - Dirk-Bart den Ouden
- Neurolinguistics Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA.
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10
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Liu D, Dai G, Liu C, Guo Z, Xu Z, Jones JA, Liu P, Liu H. Top–Down Inhibitory Mechanisms Underlying Auditory–Motor Integration for Voice Control: Evidence by TMS. Cereb Cortex 2020; 30:4515-4527. [PMID: 32147719 DOI: 10.1093/cercor/bhaa054] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
The dorsolateral prefrontal cortex (DLPFC) has been implicated in auditory–motor integration for accurate control of vocal production, but its precise role in this feedback-based process remains largely unknown. To this end, the present event-related potential study applied a transcranial magnetic stimulation (TMS) protocol, continuous theta-burst stimulation (c-TBS), to disrupt cortical activity in the left DLPFC as young adults vocalized vowel sounds while hearing their voice unexpectedly shifted upwards in pitch. The results showed that, as compared to the sham condition, c-TBS over left DLPFC led to significantly larger vocal compensations for pitch perturbations that were accompanied by significantly smaller cortical P2 responses. Source localization analyses revealed that this brain activity pattern was the result of reduced activation in the left superior frontal gyrus and right inferior parietal lobule (supramarginal gyrus). These findings demonstrate c-TBS-induced modulatory effects of DLPFC on the neurobehavioral processing of vocal pitch regulation, suggesting that disrupting prefrontal function may impair top–down inhibitory control mechanisms that prevent speech production from being excessively influenced by auditory feedback, resulting in enhanced vocal compensations for feedback perturbations. This is the first study that provides direct evidence for a causal role of the left DLPFC in auditory feedback control of vocal production.
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Affiliation(s)
- Dongxu Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Guangyan Dai
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Churong Liu
- Rehabilitation Training Center, Guangzhou 999 Brain Hospital, Guangzhou 510510, China
| | - Zhiqiang Guo
- Department of Computer Science and Technology, Zhuhai College of Jilin University, Zhuhai 519041, China
| | - Zhiqin Xu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Jeffery A Jones
- Psychology Department and Laurier Centre for Cognitive Neuroscience, Wilfrid Laurier University, Waterloo, Ontario, Canada
| | - Peng Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Hanjun Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
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11
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Franken MK, Hartsuiker RJ, Johansson P, Hall L, Wartenberg T, Lind A. Does passive sound attenuation affect responses to pitch-shifted auditory feedback? THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2019; 146:4108. [PMID: 31893741 DOI: 10.1121/1.5134449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 10/30/2019] [Indexed: 06/10/2023]
Abstract
The role of auditory feedback in vocal production has mainly been investigated by altered auditory feedback (AAF) in real time. In response, speakers compensate by shifting their speech output in the opposite direction. Current theory suggests this is caused by a mismatch between expected and observed feedback. A methodological issue is the difficulty to fully isolate the speaker's hearing so that only AAF is presented to their ears. As a result, participants may be presented with two simultaneous signals. If this is true, an alternative explanation is that responses to AAF depend on the contrast between the manipulated and the non-manipulated feedback. This hypothesis was tested by varying the passive sound attenuation (PSA). Participants vocalized while auditory feedback was unexpectedly pitch shifted. The feedback was played through three pairs of headphones with varying amounts of PSA. The participants' responses were not affected by the different levels of PSA. This suggests that across all three headphones, PSA is either good enough to make the manipulated feedback dominant, or differences in PSA are too small to affect the contribution of non-manipulated feedback. Overall, the results suggest that it is important to realize that non-manipulated auditory feedback could affect responses to AAF.
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Affiliation(s)
- Matthias K Franken
- Experimental Psychology, Ghent University, Henri Dunantlaan 2, 9000 Ghent, Belgium
| | - Robert J Hartsuiker
- Experimental Psychology, Ghent University, Henri Dunantlaan 2, 9000 Ghent, Belgium
| | - Petter Johansson
- Department of Philosophy, Lund University Cognitive Science, Lund University, Box 192, 221 00 Lund, Sweden
| | - Lars Hall
- Department of Philosophy, Lund University Cognitive Science, Lund University, Box 192, 221 00 Lund, Sweden
| | - Tijmen Wartenberg
- Hearing Technology at Wireless, acoustics, environment & expert systems (WAVES), Information Technology, Ghent University, Technologiepark-Zwijnaarde 126, 9052 Ghent, Belgium
| | - Andreas Lind
- Department of Philosophy, Lund University Cognitive Science, Lund University, Box 192, 221 00 Lund, Sweden
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12
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The relationship of anxious and depressive symptoms in Parkinson's disease with voxel-based neuroanatomical and functional connectivity measures. J Affect Disord 2019; 245:580-588. [PMID: 30439681 DOI: 10.1016/j.jad.2018.10.364] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 09/12/2018] [Accepted: 10/31/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND Anxiety and depression are two frequent comorbidities of Parkinson's disease (PD). However, the underlying neural mechanism is still unclear and the studies on their neural correlates were insufficient. METHODS Using voxel-based neuroanatomical and functional connectivity (FC) measures, i.e. grey matter volume, fractional anisotropy, and weighted degree centrality (WD), we examined their correlations with the severity levels of anxious and depressive symptoms in 36 PD patients. RESULTS Positive correlations were shown between anxiety and the WDs in the left amygdala, and between depression and short-ranged WDs in the left parahippocampal gyrus. Using these two regions as the seeds, we found that the severity levels of anxiety and depression were positively correlated with the FCs between the two seeds and the areas in the default mode network (DMN), while negatively correlated with the FCs between the two seeds and the prefrontal and superior temporal cortices. Anxiety was also positively correlated with the FC between the amygdala and the superior parietal lobule. LIMITATIONS The severity levels of anxious and depressive symptoms of our participants is relatively mild than some previous studies. The cross-sectional design of this study cannot clarify the etiological relationship between PD and two comorbidities. CONCLUSIONS Our results were in line with the key roles of the amygdala and parahippocampal gyrus in anxiety and depression, and reflected the distinct effects of the DMN, prefrontal and superior temporal cortices, and sensory-motor regions on emotional regulation. The identification of these neural substrates might assist clinical monitoring mood disturbances in PD.
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13
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Batista-Foguet JM, Saris W, Boyatzis RE, Serlavós R, Velasco Moreno F. Multisource Assessment for Development Purposes: Revisiting the Methodology of Data Analysis. Front Psychol 2019; 9:2646. [PMID: 30662420 PMCID: PMC6328456 DOI: 10.3389/fpsyg.2018.02646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 12/10/2018] [Indexed: 11/29/2022] Open
Abstract
Multisource assessment (MSA) is based on the belief that assessments are valid inferences about an individual's behavior. When used for performance management purposes, convergence of views among raters is important, and therefore testing factor invariance across raters is critical. However, when MSA is used for development purposes, raters usually come from a greater number of contexts, a fact that requires a different data analysis approach. We revisit the MSA data analysis methodology when MSA is used for development, with the aim of improving its effectiveness. First, we argue that having raters from different contexts is an integral element of the assessment, with the trait-context dyad being the actual latent variable. This leads to the specification of an Aggregate (instead of the usual Latent) multidimensional factor model. Second, since data analysis usually aggregates scores for each rater group into a single mean that is then compared with the self-rating score, we propose that the test for factor invariance must also include scalar invariance, a pre-requisite for mean comparison. To illustrate this methodology we conducted a 360° survey on a sample of over 1100 MBA students enrolled in a leadership development course. Finally, by means of the study we show how the survey can be customized to each rater group to make the MSA process more effective.
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Affiliation(s)
| | - Willem Saris
- Political Sciences Department, Universitat Pompeu Fabra, Barcelona, Spain
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Ballard KJ, Halaki M, Sowman P, Kha A, Daliri A, Robin DA, Tourville JA, Guenther FH. An Investigation of Compensation and Adaptation to Auditory Perturbations in Individuals With Acquired Apraxia of Speech. Front Hum Neurosci 2018; 12:510. [PMID: 30618687 PMCID: PMC6305734 DOI: 10.3389/fnhum.2018.00510] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 12/05/2018] [Indexed: 12/29/2022] Open
Abstract
Two auditory perturbation experiments were used to investigate the integrity of neural circuits responsible for speech sensorimotor adaptation in acquired apraxia of speech (AOS). This has implications for understanding the nature of AOS as well as normal speech motor control. Two experiments were conducted. In Experiment 1, compensatory responses to unpredictable fundamental frequency (F0) perturbations during vocalization were investigated in healthy older adults and adults with acquired AOS plus aphasia. F0 perturbation involved upward and downward 100-cent shifts versus no shift, in equal proportion, during 2 s vocalizations of the vowel /a/. In Experiment 2, adaptive responses to sustained first formant (F1) perturbations during speech were investigated in healthy older adults, adults with AOS and adults with aphasia only (APH). The F1 protocol involved production of the vowel /ε/ in four consonant-vowel words of Australian English (pear, bear, care, dare), and one control word with a different vowel (paw). An unperturbed Baseline phase was followed by a gradual Ramp to a 30% upward F1 shift stimulating a compensatory response, a Hold phase where the perturbation was repeatedly presented with alternating blocks of masking trials to probe adaptation, and an End phase with masking trials only to measure persistence of any adaptation. AOS participants showed normal compensation to unexpected F0 perturbations, indicating that auditory feedback control of low-level, non-segmental parameters is intact. Furthermore, individuals with AOS displayed an adaptive response to sustained F1 perturbations, but age-matched controls and APH participants did not. These findings suggest that older healthy adults may have less plastic motor programs that resist modification based on sensory feedback, whereas individuals with AOS have less well-established and more malleable motor programs due to damage from stroke.
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Affiliation(s)
- Kirrie J. Ballard
- Faculty of Health Sciences, University of Sydney, Lidcombe, NSW, Australia
| | - Mark Halaki
- Faculty of Health Sciences, University of Sydney, Lidcombe, NSW, Australia
| | - Paul Sowman
- Department of Cognitive Sciences, Macquarie University, Sydney, NSW, Australia
| | - Alise Kha
- Faculty of Health Sciences, University of Sydney, Lidcombe, NSW, Australia
| | - Ayoub Daliri
- Department of Speech and Hearing Science, Arizona State University, Tempe, AZ, United States
| | - Donald A. Robin
- Department of Communication Sciences and Disorders, Interdisciplinary Program in Neuroscience and Behavior, University of New Hampshire, Durham, NH, United States
| | - Jason A. Tourville
- Department of Speech, Language and Hearing Sciences, Boston University, Boston, MA, United States
| | - Frank H. Guenther
- Department of Speech, Language and Hearing Sciences, Boston University, Boston, MA, United States
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15
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Effects of COMT polymorphism on the cortical processing of vocal pitch regulation. Neuroreport 2018; 29:1530-1536. [PMID: 30300332 DOI: 10.1097/wnr.0000000000001142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Recent evidence has shown that auditory-motor integration for speech production is influenced by cognitive functions such as working memory and attention, suggesting that speech motor control is likely modulated by mechanisms mediated by prefrontal regions. Catechol-O-methyltransferase (COMT) gene plays an important role in dopamine breakdown in the prefrontal cortex and has been associated with a variety of prefrontal cognitive functions. The present event-related potential study investigated the association between COMT ValMet polymorphism and auditory-motor processing of vocal feedback errors. A sample of 131 Chinese young female adults was genotyped for rs4680 and produced sustained vowels while hearing their voice unexpectedly shifted down in pitch by 50 or 200 cents. The behavioral results showed no effects of COMT ValMet on vocal compensations for pitch perturbations. However, individuals with the Met allele produced significantly larger P2 responses to -200 cents perturbations than individuals with the Val/Val genotype. These results suggest the existence of a relationship between COMT ValMet polymorphism and self-monitoring of speech feedback errors, and they provide insights into our understanding of the top-down modulations of speech motor control mediated by prefrontal regions.
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16
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Aglieri V, Chaminade T, Takerkart S, Belin P. Functional connectivity within the voice perception network and its behavioural relevance. Neuroimage 2018; 183:356-365. [PMID: 30099078 PMCID: PMC6215333 DOI: 10.1016/j.neuroimage.2018.08.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/13/2018] [Accepted: 08/08/2018] [Indexed: 12/13/2022] Open
Abstract
Recognizing who is speaking is a cognitive ability characterized by considerable individual differences, which could relate to the inter-individual variability observed in voice-elicited BOLD activity. Since voice perception is sustained by a complex brain network involving temporal voice areas (TVAs) and, even if less consistently, extra-temporal regions such as frontal cortices, functional connectivity (FC) during an fMRI voice localizer (passive listening of voices vs non-voices) has been computed within twelve temporal and frontal voice-sensitive regions (“voice patches”) individually defined for each subject (N = 90) to account for inter-individual variability. Results revealed that voice patches were positively co-activated during voice listening and that they were characterized by different FC pattern depending on the location (anterior/posterior) and the hemisphere. Importantly, FC between right frontal and temporal voice patches was behaviorally relevant: FC significantly increased with voice recognition abilities as measured in a voice recognition test performed outside the scanner. Hence, this study highlights the importance of frontal regions in voice perception and it supports the idea that looking at FC between stimulus-specific and higher-order frontal regions can help understanding individual differences in processing social stimuli such as voices.
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Affiliation(s)
- Virginia Aglieri
- Institut des Neurosciences de la Timone, UMR 7289, CNRS and Université Aix-Marseille, Marseille, France.
| | - Thierry Chaminade
- Institut des Neurosciences de la Timone, UMR 7289, CNRS and Université Aix-Marseille, Marseille, France; Institute of Language, Communication and the Brain, Marseille, France
| | - Sylvain Takerkart
- Institut des Neurosciences de la Timone, UMR 7289, CNRS and Université Aix-Marseille, Marseille, France; Institute of Language, Communication and the Brain, Marseille, France
| | - Pascal Belin
- Institut des Neurosciences de la Timone, UMR 7289, CNRS and Université Aix-Marseille, Marseille, France; Institute of Language, Communication and the Brain, Marseille, France; International Laboratories for Brain, Music and Sound, Department of Psychology, Université de Montréal, McGill University, Montreal, QC, Canada
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17
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Kryshtopava M, Van Lierde K, Defrancq C, De Moor M, Thijs Z, D'Haeseleer E, Meerschman I, Vandemaele P, Vingerhoets G, Claeys S. Brain activity during phonation in healthy female singers with supraglottic compression: an fMRI pilot study. LOGOP PHONIATR VOCO 2017; 44:95-104. [PMID: 29219633 DOI: 10.1080/14015439.2017.1408853] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
This pilot study evaluated the usability of functional magnetic resonance imaging (fMRI) to detect brain activation during phonation in healthy female singers with supraglottic compression. Four healthy female classical singers (mean age: 26 years) participated in the study. All subjects had normal vocal folds and vocal characteristics and showed supraglottic compression. The fMRI experiment was carried out using a block design paradigm. Brain activation during phonation and exhalation was analyzed using Brain Voyager software (Brain Innovation B.V., Maastricht, The Netherlands). An fMRI data analysis showed a significant effect of phonation control in the bilateral pre/postcentral gyrus, and in the frontal, cingulate, superior and middle temporal gyrus, as well as in the parietal lobe, insula, lingual gyrus, cerebellum, thalamus and brainstem. These activation areas are consistent with previous reports using other fMRI protocols. In addition, a significant effect of phonation compared to exhalation control was found in the bilateral superior temporal gyrus, and the pre/postcentral gyrus. This fMRI pilot study allowed to detect a normal pattern of brain activity during phonation in healthy female singers with supraglottic compression using the proposed protocol. However, the pilot study detected problems with the experimental material/procedures that would necessitate refining the fMRI protocol. The phonation tasks were not capable to show brain activation difference between high-pitched and comfortable phonation. Further fMRI studies manipulating vocal parameters during phonation of the vowels /a/ and /i/ may elicit more distinctive hemodynamic response (HDR) activity patterns relative to voice modulation.
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Affiliation(s)
- Maryna Kryshtopava
- a Department of Otorhinolaryngology , University Hospital Ghent , Ghent , Belgium
| | - Kristiane Van Lierde
- b Department of Speech , Language and Hearing Sciences, University Ghent , Ghent , Belgium
| | - Charlotte Defrancq
- a Department of Otorhinolaryngology , University Hospital Ghent , Ghent , Belgium
| | - Michiel De Moor
- a Department of Otorhinolaryngology , University Hospital Ghent , Ghent , Belgium
| | - Zoë Thijs
- a Department of Otorhinolaryngology , University Hospital Ghent , Ghent , Belgium
| | - Evelien D'Haeseleer
- b Department of Speech , Language and Hearing Sciences, University Ghent , Ghent , Belgium
| | - Iris Meerschman
- b Department of Speech , Language and Hearing Sciences, University Ghent , Ghent , Belgium
| | - Pieter Vandemaele
- c Department of Radiology and Nuclear Medicine , University Hospital Ghent , Ghent , Belgium
| | - Guy Vingerhoets
- d Department of Experimental Psychology , Faculty of Psychology and Educational Sciences, Ghent University , Ghent , Belgium.,e Ghent Institute for functional and Metabolic Imaging (GIfMI) , University Hospital Ghent , Ghent , Belgium
| | - Sofie Claeys
- a Department of Otorhinolaryngology , University Hospital Ghent , Ghent , Belgium
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18
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Kryshtopava M, Van Lierde K, Meerschman I, D'Haeseleer E, Vandemaele P, Vingerhoets G, Claeys S. Brain Activity During Phonation in Women With Muscle Tension Dysphonia: An fMRI Study. J Voice 2017; 31:675-690. [DOI: 10.1016/j.jvoice.2017.03.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/13/2017] [Accepted: 03/16/2017] [Indexed: 11/26/2022]
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19
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Tang X, Chen N, Zhang S, Jones JA, Zhang B, Li J, Liu P, Liu H. Predicting auditory feedback control of speech production from subregional shape of subcortical structures. Hum Brain Mapp 2017; 39:459-471. [PMID: 29058356 DOI: 10.1002/hbm.23855] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 09/27/2017] [Accepted: 10/11/2017] [Indexed: 11/06/2022] Open
Abstract
Although a growing body of research has focused on the cortical sensorimotor mechanisms that support auditory feedback control of speech production, much less is known about the subcortical contributions to this control process. This study examined whether subregional anatomy of subcortical structures assessed by statistical shape analysis is associated with vocal compensations and cortical event-related potentials in response to pitch feedback errors. The results revealed significant negative correlations between the magnitudes of vocal compensations and subregional shape of the right thalamus, between the latencies of vocal compensations and subregional shape of the left caudate and pallidum, and between the latencies of cortical N1 responses and subregional shape of the left putamen. These associations indicate that smaller local volumes of the basal ganglia and thalamus are predictive of slower and larger neurobehavioral responses to vocal pitch errors. Furthermore, increased local volumes of the left hippocampus and right amygdala were predictive of larger vocal compensations, suggesting that there is an interplay between the memory-related subcortical structures and auditory-vocal integration. These results, for the first time, provide evidence for differential associations of subregional morphology of the basal ganglia, thalamus, hippocampus, and amygdala with neurobehavioral processing of vocal pitch errors, suggesting that subregional shape measures of subcortical structures can predict behavioral outcome of auditory-vocal integration and associated neural features. Hum Brain Mapp 39:459-471, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Xiaoying Tang
- Sun Yat-sen University-Carnegie Melon University (SYSU-CMU) Joint Institute of Engineering, Sun Yat-sen University, Guangzhou, 510006, China.,Sun Yat-sen University-Carnegie Melon University (SYSU-CMU) Shunde International Joint Research Institute, Shunde, 528300, China.,School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510006, China.,Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, 15213, Pennsylvania
| | - Na Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Siyun Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jeffery A Jones
- Psychology Department and Laurier Centre for Cognitive Neuroscience, Wilfrid Laurier University, Waterloo, Ontario, N2L 3C5, Canada
| | - Baofeng Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jingyuan Li
- Sun Yat-sen University-Carnegie Melon University (SYSU-CMU) Joint Institute of Engineering, Sun Yat-sen University, Guangzhou, 510006, China.,Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, 15213, Pennsylvania
| | - Peng Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Hanjun Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.,Guangdong Provincial Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
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20
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Kwok VPY, Dan G, Yakpo K, Matthews S, Fox PT, Li P, Tan LH. A Meta-Analytic Study of the Neural Systems for Auditory Processing of Lexical Tones. Front Hum Neurosci 2017; 11:375. [PMID: 28798670 PMCID: PMC5526909 DOI: 10.3389/fnhum.2017.00375] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 07/06/2017] [Indexed: 11/13/2022] Open
Abstract
The neural systems of lexical tone processing have been studied for many years. However, previous findings have been mixed with regard to the hemispheric specialization for the perception of linguistic pitch patterns in native speakers of tonal language. In this study, we performed two activation likelihood estimation (ALE) meta-analyses, one on neuroimaging studies of auditory processing of lexical tones in tonal languages (17 studies), and the other on auditory processing of lexical information in non-tonal languages as a control analysis for comparison (15 studies). The lexical tone ALE analysis showed significant brain activations in bilateral inferior prefrontal regions, bilateral superior temporal regions and the right caudate, while the control ALE analysis showed significant cortical activity in the left inferior frontal gyrus and left temporo-parietal regions. However, we failed to obtain significant differences from the contrast analysis between two auditory conditions, which might be caused by the limited number of studies available for comparison. Although the current study lacks evidence to argue for a lexical tone specific activation pattern, our results provide clues and directions for future investigations on this topic, more sophisticated methods are needed to explore this question in more depth as well.
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Affiliation(s)
- Veronica P Y Kwok
- Center for Language and Brain, Shenzhen Institute of NeuroscienceShenzhen, China
| | - Guo Dan
- Neuroimaging Laboratory, School of Biomedical Engineering, Shenzhen University Health Science CenterShenzhen, China.,Guangdong Key Laboratory of Biomedical Information Detection and Ultrasound ImagingShenzhen, China
| | - Kofi Yakpo
- Department of Linguistics, School of Humanities, University of Hong KongHong Kong, Hong Kong
| | - Stephen Matthews
- Department of Linguistics, School of Humanities, University of Hong KongHong Kong, Hong Kong
| | - Peter T Fox
- Center for Language and Brain, Shenzhen Institute of NeuroscienceShenzhen, China.,Neuroimaging Laboratory, School of Biomedical Engineering, Shenzhen University Health Science CenterShenzhen, China.,Research Imaging Institute, University of Texas Health Science Center at San AntonioSan Antonio, TX, United States.,South Texas Veterans Health Care SystemSan Antonio, TX, United States
| | - Ping Li
- Center for Language and Brain, Shenzhen Institute of NeuroscienceShenzhen, China.,Department of Psychology, and Center for Brain, Behavior, and Cognition, Pennsylvania State UniversityUniversity Park, PA, United States
| | - Li-Hai Tan
- Center for Language and Brain, Shenzhen Institute of NeuroscienceShenzhen, China.,Neuroimaging Laboratory, School of Biomedical Engineering, Shenzhen University Health Science CenterShenzhen, China.,Guangdong Key Laboratory of Biomedical Information Detection and Ultrasound ImagingShenzhen, China
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21
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Park KM, Kim SE, Shin KJ, Ha SY, Park J, Kim TH, Mun CW, Lee BI, Kim SE. Effective connectivity in temporal lobe epilepsy with hippocampal sclerosis. Acta Neurol Scand 2017; 135:670-676. [PMID: 27558524 DOI: 10.1111/ane.12669] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2016] [Indexed: 11/27/2022]
Abstract
OBJECTIVE We hypothesized that temporal lobe epilepsy (TLE) patients with and without hippocampal sclerosis (HS) showed differences in their limbic networks. This study aimed to evaluate the role of the thalamus in TLE patients with HS. MATERIALS AND METHODS Twenty-nine TLE patients with HS and 30 controls were enrolled in this study. In addition, we included eight TLE patients without HS as a disease control group. Using whole-brain T1-weighted MRIs, we analyzed the volumes of the limbic structures, including the hippocampus, thalamus, and total cortex, with FreeSurfer 5.1. We also investigated the effective connectivity among these structures using SPSS Amos 21 based on these volumetric measures. Moreover, we quantified correlations between epilepsy duration and the volumes of these structures. RESULTS There was a statistically significant effective connectivity from the hippocampus to the thalamus in TLE patients with HS. Moreover, the volumes of the left and right thalamus were negatively correlated with epilepsy duration (r=-.42, P=.0315 and r=-.52, P=.0062, respectively). However, neither TLE patients without HS nor normal controls had a significant effective connectivity from the hippocampus to the thalamus. CONCLUSIONS The limbic networks of TLE patients with and without HS could be different, and the thalamus might play a critical role in TLE patients with HS.
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Affiliation(s)
- K. M. Park
- Department of Neurology; Haeundae Paik Hospital; Inje University College of Medicine; Busan Korea
| | - S. E. Kim
- Department of Neurology; Haeundae Paik Hospital; Inje University College of Medicine; Busan Korea
| | - K. J. Shin
- Department of Neurology; Haeundae Paik Hospital; Inje University College of Medicine; Busan Korea
| | - S. Y. Ha
- Department of Neurology; Haeundae Paik Hospital; Inje University College of Medicine; Busan Korea
| | - J. Park
- Department of Neurology; Haeundae Paik Hospital; Inje University College of Medicine; Busan Korea
| | - T. H. Kim
- Department of Health Science and Technology; Inje University; Gimhae Korea
| | - C. W. Mun
- Department of Health Science and Technology; Inje University; Gimhae Korea
- Department of Biomedical Engineering/u-HARC; Inje University; Gimhae Korea
| | - B. I. Lee
- Department of Neurology; Haeundae Paik Hospital; Inje University College of Medicine; Busan Korea
| | - S. E. Kim
- Department of Neurology; Haeundae Paik Hospital; Inje University College of Medicine; Busan Korea
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22
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Functional Magnetic Resonance Imaging Study of Brain Activity Associated With Pitch Adaptation During Phonation in Healthy Women Without Voice Disorders. J Voice 2017; 31:118.e21-118.e28. [DOI: 10.1016/j.jvoice.2016.02.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 02/29/2016] [Indexed: 11/19/2022]
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23
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Kleber B, Friberg A, Zeitouni A, Zatorre R. Experience-dependent modulation of right anterior insula and sensorimotor regions as a function of noise-masked auditory feedback in singers and nonsingers. Neuroimage 2016; 147:97-110. [PMID: 27916664 DOI: 10.1016/j.neuroimage.2016.11.059] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/11/2016] [Accepted: 11/23/2016] [Indexed: 12/20/2022] Open
Abstract
Previous studies on vocal motor production in singing suggest that the right anterior insula (AI) plays a role in experience-dependent modulation of feedback integration. Specifically, when somatosensory input was reduced via anesthesia of the vocal fold mucosa, right AI activity was down regulated in trained singers. In the current fMRI study, we examined how masking of auditory feedback affects pitch-matching accuracy and corresponding brain activity in the same participants. We found that pitch-matching accuracy was unaffected by masking in trained singers yet declined in nonsingers. The corresponding brain region with the most differential and interesting activation pattern was the right AI, which was up regulated during masking in singers but down regulated in nonsingers. Likewise, its functional connectivity with inferior parietal, frontal, and voice-relevant sensorimotor areas was increased in singers yet decreased in nonsingers. These results indicate that singers relied more on somatosensory feedback, whereas nonsingers depended more critically on auditory feedback. When comparing auditory vs somatosensory feedback involvement, the right anterior insula emerged as the only region for correcting intended vocal output by modulating what is heard or felt as a function of singing experience. We propose the right anterior insula as a key node in the brain's singing network for the integration of signals of salience across multiple sensory and cognitive domains to guide vocal behavior.
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Affiliation(s)
- Boris Kleber
- McGill University - Montreal Neurological Institute, Neuropsychology and Cognitive Neuroscience, Montreal, QC, Canada; International Laboratory for Brain, Music and Sound research (BRAMS), Montreal, QC, Canada; Institut für Medizinische Psychologie und Verhaltensneurobiologie, Universität Tübingen, Tübingen, Germany; Center for Music in the Brain, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
| | - Anders Friberg
- Speech, Music and Hearing, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Anthony Zeitouni
- Department of Otolaryngology-Head and Neck Surgery, MUHC-Royal Victoria Hospital, McGill University, Montreal, QC, Canada
| | - Robert Zatorre
- McGill University - Montreal Neurological Institute, Neuropsychology and Cognitive Neuroscience, Montreal, QC, Canada; International Laboratory for Brain, Music and Sound research (BRAMS), Montreal, QC, Canada
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Huang X, Chen X, Yan N, Jones JA, Wang EQ, Chen L, Guo Z, Li W, Liu P, Liu H. The impact of parkinson's disease on the cortical mechanisms that support auditory-motor integration for voice control. Hum Brain Mapp 2016; 37:4248-4261. [PMID: 27400999 DOI: 10.1002/hbm.23306] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 06/21/2016] [Accepted: 06/22/2016] [Indexed: 11/09/2022] Open
Abstract
Several studies have shown sensorimotor deficits in speech processing in individuals with idiopathic Parkinson's disease (PD). The underlying neural mechanisms, however, remain poorly understood. In the present event-related potential (ERP) study, 18 individuals with PD and 18 healthy controls were exposed to frequency-altered feedback (FAF) while producing a sustained vowel and listening to the playback of their own voice. Behavioral results revealed that individuals with PD produced significantly larger vocal compensation for pitch feedback errors than healthy controls, and exhibited a significant positive correlation between the magnitude of their vocal responses and the variability of their unaltered vocal pitch. At the cortical level, larger P2 responses were observed for individuals with PD compared with healthy controls during active vocalization due to left-lateralized enhanced activity in the superior and inferior frontal gyrus, premotor cortex, inferior parietal lobule, and superior temporal gyrus. These two groups did not differ, however, when they passively listened to the playback of their own voice. Individuals with PD also exhibited larger P2 responses during active vocalization when compared with passive listening due to enhanced activity in the inferior frontal gyrus, precental gyrus, postcentral gyrus, and middle temporal gyrus. This enhancement effect, however, was not observed for healthy controls. These findings provide neural evidence for the abnormal auditory-vocal integration for voice control in individuals with PD, which may be caused by their deficits in the detection and correction of errors in voice auditory feedback. Hum Brain Mapp 37:4248-4261, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Xiyan Huang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xi Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Nan Yan
- CAS Key Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jeffery A Jones
- Psychology Department and Laurier Centre for Cognitive Neuroscience, Wilfrid Laurier University, N2L 3C5, Waterloo, Ontario, Canada
| | - Emily Q Wang
- Department of Communication Disorders and Sciences, RUSH University Medical Center, 1653 West Congress Parkway, 203 SENN, Chicago, Illinois, 60612
| | - Ling Chen
- Department of Neurology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Zhiqiang Guo
- Department of Biomedical Engineering School of Engineering, Sun Yat-Sen University, Guangzhou, China, 510006
| | - Weifeng Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Peng Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Hanjun Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.,Guangdong Provincial Key Laboratory of Brain Function and Disease Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China, 510080
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New AB, Robin DA, Parkinson AL, Eickhoff CR, Reetz K, Hoffstaedter F, Mathys C, Sudmeyer M, Michely J, Caspers J, Grefkes C, Larson CR, Ramig LO, Fox PT, Eickhoff SB. The intrinsic resting state voice network in Parkinson's disease. Hum Brain Mapp 2015; 36:1951-62. [PMID: 25627959 PMCID: PMC4782783 DOI: 10.1002/hbm.22748] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 01/06/2015] [Accepted: 01/13/2015] [Indexed: 01/09/2023] Open
Abstract
Over 90 percent of patients with Parkinson's disease experience speech-motor impairment, namely, hypokinetic dysarthria characterized by reduced pitch and loudness. Resting-state functional connectivity analysis of blood oxygen level-dependent functional magnetic resonance imaging is a useful measure of intrinsic neural functioning. We utilized resting-state functional connectivity modeling to analyze the intrinsic connectivity in patients with Parkinson's disease within a vocalization network defined by a previous meta-analysis of speech (Brown et al., 2009). Functional connectivity of this network was assessed in 56 patients with Parkinson's disease and 56 gender-, age-, and movement-matched healthy controls. We also had item 5 and 18 of the UPDRS, and the PDQ-39 Communication subscale available for correlation with the voice network connectivity strength in patients. The within-group analyses of connectivity patterns demonstrated a lack of subcortical-cortical connectivity in patients with Parkinson's disease. At the cortical level, we found robust (homotopic) interhemispheric connectivity but only inconsistent evidence for many intrahemispheric connections. When directly contrasted to the control group, we found a significant reduction of connections between the left thalamus and putamen, and cortical motor areas, as well as reduced right superior temporal gyrus connectivity. Furthermore, most symptom measures correlated with right putamen, left cerebellum, left superior temporal gyrus, right premotor, and left Rolandic operculum connectivity in the voice network. The results reflect the importance of (right) subcortical nodes and the superior temporal gyrus in Parkinson's disease, enhancing our understanding of the neurobiological underpinnings of vocalization impairment in Parkinson's disease.
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Affiliation(s)
- Anneliese B. New
- University of Texas Health Science Center at San Antonio, Research Imaging InstituteSan AntonioTexas
| | - Donald A. Robin
- University of Texas Health Science Center at San Antonio, Research Imaging InstituteSan AntonioTexas
- University of Texas Health Science Center at San Antonio, Department of NeurologySan AntonioTexas
- University of Texas Health Science Center at San Antonio, Department of RadiologySan AntonioTexas
- University of Texas Health Science Center at San Antonio and University of Texas at San Antonio, Joint Program in Biomedical EngineeringSan AntonioTexas
| | - Amy L. Parkinson
- University of Texas Health Science Center at San Antonio, Research Imaging InstituteSan AntonioTexas
| | - Claudia R. Eickhoff
- Research Center JulichInstitute of Neuroscience and Medicine (INM‐1)Department of PsychiatryPsychotherapy and Psychosomatics, University HospitalJulichGermany
- University Hospital Aachen, Department of Psychiatry, Psychotherapy and PsychosomaticsAachenGermany
| | - Kathrin Reetz
- Department of NeurologyUniversity of AachenAachenGermany
- Research Center JulichInstitute of Neuroscience and Medicine (INM‐4)Department of NeurologyUniversity HospitalJulichGermany
- Julich Aachen Research AllianceTranslational Brain MedicineJulich and AachenGermany
| | - Felix Hoffstaedter
- Research Center JulichInstitute of Neuroscience and Medicine (INM‐1)Department of PsychiatryPsychotherapy and Psychosomatics, University HospitalJulichGermany
- Department of Clinical Neuroscience and Medical PsychologyHeinrich Heine University–DüsseldorfDusseldorfGermany
| | - Christian Mathys
- Department of Diagnostic and Interventional RadiologyUniversity Dusseldorf, Medical FacultyDusseldorfGermany
| | - Martin Sudmeyer
- Department of NeurologyHeinrich Heine University – Dusseldorf, University HospitalDusseldorfGermany
| | - Jochen Michely
- Department of Neurology, Cologne UniversityCologneGermany
| | - Julian Caspers
- Research Center JulichInstitute of Neuroscience and Medicine (INM‐1)Department of PsychiatryPsychotherapy and Psychosomatics, University HospitalJulichGermany
- Department of Diagnostic and Interventional RadiologyUniversity Dusseldorf, Medical FacultyDusseldorfGermany
| | - Christian Grefkes
- Department of Neurology, Cologne UniversityCologneGermany
- Max‐Planck‐Institute for Neurological ResearchNeuromodulation, and NeurorehabilitationCologneGermany
| | - Charles R. Larson
- Northwestern University, Communication Sciences and DisordersEvanstonIllinois
| | - Loraine O. Ramig
- Department of SpeechLanguage and Hearing Science, University of Colorado – BoulderColorado
- National Center for Voice and SpeechSalt Lake CityUtah
| | - Peter T. Fox
- University of Texas Health Science Center at San Antonio, Research Imaging InstituteSan AntonioTexas
- University of Texas Health Science Center at San Antonio, Department of NeurologySan AntonioTexas
- University of Texas Health Science Center at San Antonio, Department of RadiologySan AntonioTexas
- South Texas Veterans Health Care System, Department of NeurologySan AntonioTexas
| | - Simon B. Eickhoff
- Research Center JulichInstitute of Neuroscience and Medicine (INM‐1)Department of PsychiatryPsychotherapy and Psychosomatics, University HospitalJulichGermany
- Department of Clinical Neuroscience and Medical PsychologyHeinrich Heine University–DüsseldorfDusseldorfGermany
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26
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Ballard KJ, Tourville JA, Robin DA. Behavioral, computational, and neuroimaging studies of acquired apraxia of speech. Front Hum Neurosci 2014; 8:892. [PMID: 25404911 PMCID: PMC4217373 DOI: 10.3389/fnhum.2014.00892] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Accepted: 10/16/2014] [Indexed: 12/14/2022] Open
Abstract
A critical examination of speech motor control depends on an in-depth understanding of network connectivity associated with Brodmann areas 44 and 45 and surrounding cortices. Damage to these areas has been associated with two conditions-the speech motor programming disorder apraxia of speech (AOS) and the linguistic/grammatical disorder of Broca's aphasia. Here we focus on AOS, which is most commonly associated with damage to posterior Broca's area (BA) and adjacent cortex. We provide an overview of our own studies into the nature of AOS, including behavioral and neuroimaging methods, to explore components of the speech motor network that are associated with normal and disordered speech motor programming in AOS. Behavioral, neuroimaging, and computational modeling studies are indicating that AOS is associated with impairment in learning feedforward models and/or implementing feedback mechanisms and with the functional contribution of BA6. While functional connectivity methods are not yet routinely applied to the study of AOS, we highlight the need for focusing on the functional impact of localized lesions throughout the speech network, as well as larger scale comparative studies to distinguish the unique behavioral and neurological signature of AOS. By coupling these methods with neural network models, we have a powerful set of tools to improve our understanding of the neural mechanisms that underlie AOS, and speech production generally.
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Affiliation(s)
| | - Jason A. Tourville
- Department of Speech, Language, and Hearing Sciences, Boston UniversityBoston, MA, USA
- Center for Computational Neuroscience and Neural Technology (CompNet), Boston UniversityBoston, MA, USA
| | - Donald A. Robin
- Departments of Neurology, Radiology, Biomedical Engineering, Research Imaging Institute, University of Texas Health Science Center San AntonioSan Antonio, TX, USA
- Biomedical Engineering, Honor’s College, University of Texas at San AntonioTX, USA
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27
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Kwok VPY, Wang T, Chen S, Yakpo K, Zhu L, Fox PT, Tan LH. Neural signatures of lexical tone reading. Hum Brain Mapp 2014; 36:304-12. [PMID: 25196948 DOI: 10.1002/hbm.22629] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Revised: 08/29/2014] [Accepted: 08/29/2014] [Indexed: 11/08/2022] Open
Abstract
Research on how lexical tone is neuroanatomically represented in the human brain is central to our understanding of cortical regions subserving language. Past studies have exclusively focused on tone perception of the spoken language, and little is known as to the lexical tone processing in reading visual words and its associated brain mechanisms. In this study, we performed two experiments to identify neural substrates in Chinese tone reading. First, we used a tone judgment paradigm to investigate tone processing of visually presented Chinese characters. We found that, relative to baseline, tone perception of printed Chinese characters were mediated by strong brain activation in bilateral frontal regions, left inferior parietal lobule, left posterior middle/medial temporal gyrus, left inferior temporal region, bilateral visual systems, and cerebellum. Surprisingly, no activation was found in superior temporal regions, brain sites well known for speech tone processing. In activation likelihood estimation (ALE) meta-analysis to combine results of relevant published studies, we attempted to elucidate whether the left temporal cortex activities identified in Experiment one is consistent with those found in previous studies of auditory lexical tone perception. ALE results showed that only the left superior temporal gyrus and putamen were critical in auditory lexical tone processing. These findings suggest that activation in the superior temporal cortex associated with lexical tone perception is modality-dependent.
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Affiliation(s)
- Veronica P Y Kwok
- State Key Laboratory of Brain and Cognitive Sciences, University of Hong Kong, Pokfulam Road, Hong Kong; Department of Linguistics, University of Hong Kong, Pokfulam Road, Hong Kong
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